Update with origin/master.

No problems.

diff --cc gdb/Makefile.in
Simple merge

diff --cc gdb/NEWS
Simple merge

diff --cc gdb/doc/gdb.texinfo
Simple merge

diff --cc gdb/dwarf2read.c
Simple merge

diff --cc gdb/gdbtypes.h
Simple merge

diff --cc gdb/rust-lang.c
Simple merge

diff --cc gdb/symtab.c
Simple merge

diff --cc gdb/utils.c
Simple merge

diff --cc gdb/xcoffread.c
Simple merge